 Resources for the Comprehensive Curriculum Grade 4 Science Unit 2 Light, Heat, and Sound Activity 3: Sound Pitch (GLEs: 1, 2, 3, 4, 6, 12, 13, 30)
CC: The teacher will provide students with a discovery box that consists of various lengths of cut PVC pipes that are firmly attached and hidden inside the box.
For directions and music on creating the pipes, go to the following site. Palm pipe directions: http://www.science.tamu.edu/CMSE/activities/PalmPipesChimes.doc
CC: Next, provide students with a hard plastic ruler. Ask them how they could make the ruler vibrate. Can the ruler be made to vibrate at different pitches? Then have students create a testable question regarding the metric lengths of the rulers and the pitch. Make sure that they include an observation of the vibration speeds in their data tables. Guide students to design their procedures. Note: You may wish to have all students agree on three lengths to test as it may become difficult for them to hear with so much noise in the classroom. Have students record their observations in the data table. They should draw the conclusion that the faster the vibration, the higher the pitch.
Students could make other instruments to investigate sound. You can find different instruments to make and directions at the following website.
Elementary School Lesson plans http://www.physics.rutgers.edu/hex/visit/lesson/lesson_links1.html
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